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RCCB tripping randomly
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 499907" data-attributes="member: 250"><p>No.. Your logic is wrong..</p><p></p><p>First if you were going to fit any consumer unit that includes RCDs / RCBO's...</p><p></p><p>Then to do it correctly you need the test equipment, (that you say you haven't got and that you don't know how to use), in order to verify that your alteration is safe to use before you re-energise the power to the circuit...</p><p></p><p>It is not Specialist Equipment .. it is basic equipment to do any electrical alteration work safely.</p><p></p><p>And... if you have a circuit with one RCD supplying another RCD further down the circuit and you get a fault at the far end of the circuit. it is pot luck around which RCD trips first or not..</p><p></p><p>i.e. a fault on the outside wiring with your scenario could give ANY of the following symptoms.</p><p></p><p>1/ Original RCD in house trips on its own.</p><p></p><p>2/ New RCBO board trips on its own.</p><p></p><p>3/ Both RCD in house and new RCBO boards tip together...</p><p></p><p>So a fault outside could give you results that prove absolutely nothing about where the cause is..</p><p></p><p> :shakehead </p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 499907, member: 250"] No.. Your logic is wrong.. First if you were going to fit any consumer unit that includes RCDs / RCBO's... Then to do it correctly you need the test equipment, (that you say you haven't got and that you don't know how to use), in order to verify that your alteration is safe to use before you re-energise the power to the circuit... It is not Specialist Equipment .. it is basic equipment to do any electrical alteration work safely. And... if you have a circuit with one RCD supplying another RCD further down the circuit and you get a fault at the far end of the circuit. it is pot luck around which RCD trips first or not.. i.e. a fault on the outside wiring with your scenario could give ANY of the following symptoms. 1/ Original RCD in house trips on its own. 2/ New RCBO board trips on its own. 3/ Both RCD in house and new RCBO boards tip together... So a fault outside could give you results that prove absolutely nothing about where the cause is.. :shakehead [/QUOTE]
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RCCB tripping randomly
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